1. MATTER
SCIENCE 5th
2018/2019

2. MATTER: What is matter? Matter is… All matter has…
Some examples of matter:
9oE

3. MATTER: What is matter?
Matter is…everything around us (living or non-living) that takes space.
All matter has…mass and volume.
Some examples of matter: air, water, food, table…

4. MATTER: How to measure matter?
MASS:
VOLUME:
_gGCunofgI

5. MATTER: mass and volume.
MASS:how much matter an object has.
 We can measure mass in kilograms.
VOLUME:the amount of space that matter takes up.
 We can measure volume in metres.

6. ACTIVITY
Which has more mass: a kilogram of feathers or a kilogram of iron?
Which has more volume?
Why?
IRON FEATHER

7. ACTIVITY
Why do you think a small stone sinks in water while a giant cruise boat floats?
Because a cruise boat is made up of a different material than a stone.
There is air inside a boat.

8. STATES OF MATTER There are three states of matter.
Every state is different because of the organisation of the molecules inside the matter. 

9. STATES OF MATTER SOLID LIQUID GAS There are three states of matter.
Every state is different because of the organisation of the molecules inside the matter.
SOLID
LIQUID
GAS

10. ACTIVITY
Solid, liquid or gas? Match diagrams 1-3 to pictures a-c.

11. ACTIVITY
SOLID the particles are very close each other. There is a strong force of attraction. It’s got a definite shape and volume.
LIQUID they are together. The force of attraction is weaker than in solids . They have a definite volume but they haven’t a definite shape.
GAS the particles are very far away to each other. The force of attraction is very weak. They haven’t a definite shape or volume.

12. CHANGES OF MATTER Watch this video and identify the changes of matter.
Changes of matter:
* changes

13. PHYSICAL CHANGES
It means that the appearance of the matter changes, but its chemical properties are still the same.

14. PHYSICAL CHANGES
It is also when a matter changes of state due to temperature.

15. CHEMICAL CHANGES In a chemical change, a new substance is produced.
This new substance has different chemical properties from the original.
COMBUSTION
DESCOMPOSITION
OXIDATION

16. MIXTURES: soluble and insoluble
We can distinguish between soluble and insoluble mixtures.
If a substance dissolves it’s a soluble, so we make a new solution.
For example: milk and cocoa.
* To make a solution there is a solute substance and a solvent substance.
If a substande doesn’t dissolve it’s insoluble, so we can see different components.
For example: oil and water.

17. Soluble solutions There are things that help solutes to dissolve.
MIXING: you have to shake.
QUANTITY OF SOLVENT: it’s important to have more quantity of solvent than solute substance.
HEAT: if you heat something it’s easier to dissolve everything.
TIME: it’s not always fast, sometimes it needs time to dissolve properly.

18. MIXTURES: homogeneous and heterogeneous
Anytime you combine two or more different things, you make a mixture.
We can distinguish between homogeneous and heterogeneous mixtures.
What’s the difference?
HOMOGENEOUS: carrots+potatoes+broccoli = a vegetable puree.
HETEROGENEOUS: letuce+onion+tomatoe+tuna= salad.